High Efficiency Gas furnace Vent

Shouldn’t this furnace be vented to the outside. Two PVC pipes were present on the outside of the home, but only one coming to the side of the furnace. It appeared that the basement had been recently finished.

Rich Carter
Rich Carter LLC
Bunker Hill, WV

Looks like it may be a cat 4 .
That would then be the air intake.

Give us the model and serial number.

Where did the other pipe go?

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High Efficiency Gas Furnace
Heating and cooling Toronto